CN103409655B - A kind of Malleable bronze bar - Google Patents
A kind of Malleable bronze bar Download PDFInfo
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- CN103409655B CN103409655B CN201310344241.3A CN201310344241A CN103409655B CN 103409655 B CN103409655 B CN 103409655B CN 201310344241 A CN201310344241 A CN 201310344241A CN 103409655 B CN103409655 B CN 103409655B
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- bronze bar
- malleable
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Abstract
A kind of Malleable bronze bar, it is characterized in that: by percentage to the quality, it comprises following component: copper >=82%; Silicon 3.8 ~ 4.2%; Iron 0.05 ~ 0.1%; Nickel 0.01 ~ 0.1%; Plumbous 0.02 ~ 0.08%; Tin 0.1 ~ 0.15%; Zinc 12 ~ 14%; Yttrium 0.15 ~ 0.18%; Lanthanum 0.2 ~ 0.25%; Other content of impurities≤0.25%.The present invention, by the content of each element in adjustment copper material, adds yttrium and the lanthanum of scientific matching, improves mobility and the wear resistance of copper material, can obtain the Malleable bronze bar being applicable to forging processing.
Description
Technical field
The present invention relates to a kind of Malleable bronze bar, be specifically related to a kind of formula and manufacture craft of Malleable bronze bar.
Background technology
Bronze forging range is narrow, and in forging process, easily occur cracking, coarse-grain, the defect such as folding, yield rate is extremely low, and therefore, bronze forges and still not can manufacture at present, mainly relies on Foundry Production.But many defects such as spillage of material is large, energy consumption is high, efficiency is low, environmental pollution that bronze casting exists, and relative casting technique, metal can make compacting and the seam such as original loose, pore, slag inclusion in forging and molding, organizes tightr; And due to the generation of recrystallize, originally thick dendrite and column crystal can be made to become thinner, the of uniform size equiaxed structure of crystal grain, improve its structure and mechanical property; Meanwhile, forging and molding can ensure continuity and the integrity of metal fibrous tissue, and the fibrous tissue of forging and forging profile are consistent, thus ensures that part has good mechanical property and long work-ing life.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of above prior art: provide a kind of mobility and wear resistance better, can forge the Malleable bronze bar of processing.
Technical solution of the present invention is as follows:
A kind of Malleable bronze bar, by percentage to the quality, it comprises following component: copper >=82%; Silicon 3.8 ~ 4.2%; Iron 0.05 ~ 0.1%; Nickel 0.01 ~ 0.1%; Plumbous 0.02 ~ 0.08%; Tin 0.1 ~ 0.15%; Zinc 12 ~ 14%; Yttrium 0.15 ~ 0.18%; Lanthanum 0.2 ~ 0.25%; Other content of impurities≤0.25%.
Manufacture craft of the present invention is: 1, under the main metal element such as electrolytic copper, brass, silicon are in the temperature of 1100-1150 DEG C, carry out melting, covering slag is made with oryolite, until completely melted, add the tin of preheating, after tin all melts and is full and uniform, adjustment temperature is to 1150-1200 DEG C, by in yttrium, La mixed rare earth press-in melt, stir, then components tests is carried out, carry out composition allotment according to said components after chemical examination, continue melting to component content and meet the low plumbous Malleable bronze bar of the present embodiment, be incubated at the temperature of 1150-1160 DEG C; 2, conventionally copper rod is produced.
The tensile strength of described copper rod is 380-390N/mm
2, elongation after fracture is 15 ~ 20%.
The invention has the beneficial effects as follows: yttrium and lanthanum are two kinds of rare earth elements, the interpolation of these two kinds of elements can improve mobility and the wear resistance of metal, the present invention is by the content of each element in adjustment copper material, add yttrium and the lanthanum of scientific matching, greatly improve mobility and the wear resistance of copper material, the Malleable bronze bar being applicable to forging processing can be obtained.
Embodiment
With specific embodiment, the present invention is described in further details below, but the present invention is not only confined to following specific embodiment.
Embodiment 1
The Malleable bronze bar of the present embodiment, by percentage to the quality, it comprises following component: copper 82.5%; Silicon 4.1%; Iron 0.08%; Nickel 0.06%; Plumbous 0.05%; Tin 0.15%; Zinc 12.5%; Yttrium 0.15%; Lanthanum 0.2%; Other content of impurities 0.21%.
Melting is carried out under electrolytic copper 1.2 tons, H62 brass 0.5 ton, silicon 0.06 ton are in the temperature of 1150, covering slag is made with oryolite, until completely melted, add 0.015 ton, the tin of preheating, after tin all melts and is full and uniform, adjustment temperature is to 1150-1200 DEG C, by in yttrium, La mixed rare earth 0.035 ton press-in melt, stir, then components tests is carried out, carry out composition allotment according to said components after chemical examination, continue melting to component content and meet the low plumbous Malleable bronze bar of the present embodiment, be incubated at the temperature of 1150-1160 DEG C.
Next conventionally copper rod is produced.
After testing, the Malleable bronze bar of the present embodiment has following technical indicator:
The tensile strength of described copper rod is 380-390N/mm
2, elongation after fracture is 15 ~ 20%.
Claims (3)
1. a Malleable bronze bar, is characterized in that: by percentage to the quality, is made up of following component: copper 82.5%; Silicon 4.1%; Iron 0.08%; Nickel 0.06%; Plumbous 0.05%; Tin 0.15%; Zinc 12.5%; Yttrium 0.15%; Lanthanum 0.2%; Other content of impurities 0.21%.
2. Malleable bronze bar according to claim 1, is characterized in that:
Copper rod manufacture craft is:
(1), under major metal raw material electrolytic copper, brass and silicon are in the temperature of 1100-1150 DEG C, melting is carried out, covering slag is made with oryolite, until completely melted, add the tin of preheating, after tin all melts and is full and uniform, adjustment temperature is to 1150-1200 DEG C, by in yttrium, La mixed rare earth press-in melt, stir, then components tests is carried out, carry out composition allotment according to said components after chemical examination, continue the component concentration that melting to component content meets Malleable bronze bar restriction described in claim 1, be incubated at the temperature of 1150-1160 DEG C;
(2), conventionally copper rod is produced.
3. Malleable bronze bar according to claim 1, is characterized in that: the tensile strength of described copper rod is 380-390N/mm
2, elongation after fracture is 15 ~ 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344241.3A CN103409655B (en) | 2013-08-09 | 2013-08-09 | A kind of Malleable bronze bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344241.3A CN103409655B (en) | 2013-08-09 | 2013-08-09 | A kind of Malleable bronze bar |
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| Publication Number | Publication Date |
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| CN103409655A CN103409655A (en) | 2013-11-27 |
| CN103409655B true CN103409655B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310344241.3A Active CN103409655B (en) | 2013-08-09 | 2013-08-09 | A kind of Malleable bronze bar |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165786A (en) * | 2018-01-26 | 2018-06-15 | 宁波华成阀门有限公司 | A kind of high fluidity Perking brass and its manufacturing method |
| CN113201662B (en) * | 2021-05-04 | 2022-02-22 | 宁波华成阀门有限公司 | Lead-free copper bar and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816946A (en) * | 2011-06-09 | 2012-12-12 | 浙江万得凯铜业有限公司 | Copper rod manufacturing process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4294793B2 (en) * | 1999-05-28 | 2009-07-15 | Ｊマテ．カッパープロダクツ 株式会社 | Lead-free free-cutting bronze alloy |
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- 2013-08-09 CN CN201310344241.3A patent/CN103409655B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816946A (en) * | 2011-06-09 | 2012-12-12 | 浙江万得凯铜业有限公司 | Copper rod manufacturing process |
Non-Patent Citations (1)
| Title |
|---|
| 耐磨铜合金轴瓦材料的研究;施瑞鹤等;《稀土》;19861231(第1期);第17页 * |
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| CN103409655A (en) | 2013-11-27 |
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